From: Adriano Ferreira <a.r.ferreira@...>
Date: 2007-06-16T03:17:13+09:00
Subject: Re: ruby in cmd

On 6/15/07, maung <einaung@yahoo.com> wrote:
> I am new to Ruby and am trying to run a piece of code from Programming
> Ruby in cmd. When i run in cmd >ruby Song.rb, I don't get any output.
> But I can get the result I expected when I run in irb. Can anyone help
> me on this?

As there is no print/puts/etc. statement, this non-output is expected
from the file you wrote when run as a script.

irb is a read-eval-print loop. By default, it prints the output of the
expressions and that's why you see the output in this case.

> class Song
>     def initialize(name , artist, duartion)
>         @name = name
>         @artist = artist
>         @duration = duartion
>     end
>
>     def to_s
>      "Song: #{system @name}--#{@artist} (#{@duration})"
>     end
>
>     def name
>         @name
>     end
>
>     def artist
>         @artist
>     end
>
>     def duration
>         @duration
>     end
> end
>
>
> aSong = Song.new("NAF", "AS", 300)
> aSong.to_s
> aSong.artist
> aSong.name
> aSong.duration
>
> --
> Posted via http://www.ruby-forum.com/.
>
>